Wear plate



Dec. 18, 1928.

E. G. GOODWIN WEAR PLATE Filed June 29, 1926 Patented Dec. 18, 1928.

UNITED, STATES PATENT OFFICE.

ERNEST G. GOODWIN, F PELHAM, NEW YORK, ASSIGNOB TO STANDARD COUPLERCOMPANY, 0F NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

WEAR PLATE.

Application filed June 29, 1926. Serial No. 119,396.

This invention relates to draft gears and has for its object theprovision of means for lessening the expense of such gears by providingdetachable wear plates.

A gear of the type shown, except that the wear plate and barrel areintegral, is a very satisfactory piece of car equipment and is at thepresent time well-known and in use, while the wedges themselves arerelatively inexpensive the barrel is a huge steel casting that isrelatively ,quite expensive. As the only part of the barrel that wearsis the box, by making the box detachable a considerable saving may behad by prolonging the life of the gear after the box is worn, making itunnecessary to scrap the large steel casting. The wear plate illustratedis of special ribbed formation, the `rib and the lug relativelystrengthening each other and adding very materially to the life oftheplate. In the drawings i Figure 1 is a side view of the device partly incentral section and Figure 2 is a front elevation with the lower Vwearplate in place but with the upper wear plate removed so as to show thehole or recess in the barrel. V The gear shown except for the wearplates follows general practice consisting of a. spring barrel having aremovable rear end plate 11 and spring 12. The front walls 13 outwardlydiverge and have a recess 14 which may be a hole extending entirely thruthe casting as shown.

Awear plate 16 fits snugly each sloping wall 13 and has an integral lug17 fitting snugly the recess or hole 14 s0 as to hold the wear plate inplace. On the inner or concave side 18 of the wear plate is a rib 19which does not extend the entire length of the wear plate from front toback thus providing ashoulder which engages a shoulder on the side wedge20 formed by the grooving of the proximate face as indicated at 21. Therib and groove thus form a limiting means preventing the side Wedgesfrom moving out of the barrel as they would otherwise do under urge ofthe center wedge 22 which is pressed outwardly or forwardly by thespring 12.

The operation of the device is believed to be apparent. The wear occursbetween the sloping faces of the center wedge andthe corresponding facesof the side wedges and Vbetween proximate faces of the side wedges andthe plates, the latter forming the socalled box of the spring barrel.When any of the wedges become worn to a` given extent they are scrapped'but instead of scrapping `the large and expensive barrel casting', ashas two outwardly diver-ging walls at the open end, each wall having a.recess therein, a pair y of wear plates each having a lug fitting one ofsaid recesses, a center wedge, a spring engaging said wedge and theclosed end of said barrel, a plurality of side wedges in engagement withsaid center wedge each having a groove extending part-way only of itsouter friction face, and a guiding rib on each plate opposite the lugfor engaging said grooves to guide and limit movement of said sidewedges. Y

2. The device of claim 1 in which the plates are curved on their ribbedand lugged faces.

3. A wear plate for a draft gear having a concave wearing face to engagea wedge and a convex face to engage the front end of a spring barrel, a.lug extending from the convex face, and a` rib extending from theconcave face, the centerline of the lug passing centrally thru thecenterline of the rib.

4. A wear plate for a draft gear having an inner wearing face to engageay wedge and an outer face to engage the frontend of a spring barrel, alug extending from the outer face, and a rib extending from the innerface, the centerline of the lug passing centrally thru the centerline ofthe rib.

In testimony whereof I aflix my signature.

.ERNEST G. GOODWIN.

